YU Bin 1, CAO Bo 1, CAO Huiqun 2,ZHNAG Xinpeng 2, ZHANG Shengjie 2, LIN Ping 2 ,ZHANG Anxiang 2
LUO Zhongkuan 2, ZHANG Tao 3
（1. College of Optoelectronic Engineering, Shenzhen University, Shenzhen Guangdong 518060, China; 2. College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen Guangdong 518060, China; 3. Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences, shanghai 200050, China）
Abstract:Potassium niobate crystals had been synthesized by a molten salt process with KCl, K2SO4 and Nb2O5 as materials. The effect of reactive temperature and reactive time on the structure and morphology of the powders were discussed, and the optical properties of the samples were studied. The reactive process had not begun when the reactive temperature was 700℃. A small amount of rod and some bulk KNb3O8 crystals were formed, when the sample was treated at 800℃ for 2 hours. A large amount of rod KNb3O8 crystals were formed, when the sample was treated at 900℃ for 1 hour.
Key words: potassium triniobate; preparation; rod; molten salt process; fluorescence